Glottis
the mouth of the wind-pipe.
It constitutes a narrow aperture covered by the epiglottis when one holds his breath or swallows. It contributes by dilatation and contraction to the modulation of the voice. It is sometimes called the rima glottis.
GLOUCESTER (glos'ter), a city and parliamentary borough, river port and county-seat of Gloucester co., England ; on the left bank of the Severn, here divided into two channels inclosing the Isle of Alney and crossed by two fine bridges, 95 miles N. W. of London. It carries on considerable shipping trade, the Gloucester and Berkeley canal giving aca